Another question on Visual Composer shortcode

Hello Mikko,
Sorry to bring back this shortcode problem again, but I browsed the forum (and your site) for ages and couldn’t solve this question :
After having inserted the code snippet in my functions.php, almost all of the shortcodes don’t show up anymore except (at least) one.
Here’s the exerpt : “…la qualité de service (NF 15838).
[mk_flipbox flip_direction= »vertical » front_background_color= »#fda600″ back_background_color= »#433d60″ icon_type…. ”
I’ve a suggestion but not sure : it seems that this shrtcode doesn’t have a closing tag. I tried to modifiy the snippet but did not succeed…
I can send a url if you need.
Thank for your help and have a good year ending !